Table 3

Comparison of mean β-carotene vitamin content in fresh beef from grass-fed and grain-fed cattle.

β-carotene

Author, year, animal class

Grass-fed (ug/g tissue)

Grain-fed (ug/g tissue)

Insani et al., 2007, Crossbred steers

0.74*

0.17*

Descalzo et al., 2005 Crossbred steers

0.45*

0.06*

Yang et al., 2002, Crossbred steers

0.16*

0.01*

* Indicates a significant difference (at least P < 0.05) between feeding regimens was reported within each respective study.

Daley et al. Nutrition Journal 2010 9:10   doi:10.1186/1475-2891-9-10